Delta Hd3 fault code meaning

Delta / Hd3

Series: C2000 Plus, CFP2000, CH2000, CP2000, DPD-K, VP3000-E, VP3000

occ hardware circuit error

AC motor drive

Meaning: AC motor drive occ IGBT short circuit detection protection circuit error at power-on.

Possible causes

Source: C2000 Plus Series User Manual (DELTA_IA-MDS_C2000 Plus_UM_TC_20250522) P421; CFP2000 Series User Manual (DELTA_IA-MDS_CFP2000_UM_SC_20250731) P284; CH2000 Series User Manual (DELTA_IA-MDS_CH2000_UM_SC_20251030) P381; CP2000 Series User Manual (DELTA_IA-MDS_CP2000_UM_SC_20250704) P392; DPD-K Series User Manual (DPD-K user manual_20211224) P316; VP3000-E & VP3000-EHS User Manual (DELTA_IA-MDS_VP3000-E-VP3000-EHS_UM_SC_20260306) P402; VP3000 Series User Manual (DELTA_IA-MDS_VP3000_UM_TC_20250523) P437

Series: C2000-R

occ hardware circuit error

AC motor drive

Meaning:

Possible causes

Source: C2000-R User Manual P218

Series: CT2000

occ IGBT Short circuit detection error

AC motor drive

Meaning:

Possible causes

Source: CT2000 Series User Manual (DELTA_IA-MDS_CT2000_UM_SC_20250522) P382

Series: VFD-DD, VFD-VE, VFD-VL

Ground fault current detection error

AC motor drive

Meaning:

Possible causes

Source: VFD-DD (Ver. F, S, T & V ) (DELTA_IA-MDS_VFD-DD_UM_TC_20170609) P36; Delta VFD-VE Manual P66; Delta VFD-VL Manual P62